From: Andrew Lunn <andrew@lunn•ch>
To: "Wells Lu 呂芳騰" <wells.lu@sunplus•com>
Cc: Wells Lu <wellslutw@gmail•com>,
"davem@davemloft•net" <davem@davemloft•net>,
"kuba@kernel•org" <kuba@kernel•org>,
"robh+dt@kernel•org" <robh+dt@kernel•org>,
"netdev@vger•kernel.org" <netdev@vger•kernel.org>,
"devicetree@vger•kernel.org" <devicetree@vger•kernel.org>,
"linux-kernel@vger•kernel.org" <linux-kernel@vger•kernel.org>,
"p.zabel@pengutronix•de" <p.zabel@pengutronix•de>
Subject: Re: [PATCH 2/2] net: ethernet: Add driver for Sunplus SP7021
Date: Mon, 8 Nov 2021 15:52:35 +0100 [thread overview]
Message-ID: <YYk5s5fDuub7eBqu@lunn.ch> (raw)
In-Reply-To: <4e663877558247048e9b04b027e555b8@sphcmbx02.sunplus.com.tw>
> The switch will not recognize type of packets, regardless BPDU, PTP or any other
> packets. If turning off source-address learning function, it works like an Ethernet
> plus a 2-port hub.
So without STP, there is no way to stop an loop, and a broadcast storm
taking down your network?
Looking at the TX descriptor, there are two bits:
[18]: force forward to port 0
[19]: force forward to port 1
When the switch is enabled, can these two bits be used?
In the RX descriptor there is:
pkt_sp:
000: from port0
001: from port1
110: soc0 loopback
101: soc1 loopback
Are these bits used when the switch is enabled?
0.31 port control 1 (port cntl1) blocking state seems to have what you
need for STP.
Andrew
next prev parent reply other threads:[~2021-11-08 14:52 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-03 11:02 [PATCH 0/2] This is a patch series of ethernet driver for Sunplus SP7021 SoC Wells Lu
2021-11-03 11:02 ` [PATCH 1/2] devicetree: bindings: net: Add bindings doc for Sunplus SP7021 Wells Lu
2021-11-03 11:02 ` [PATCH 2/2] net: ethernet: Add driver " Wells Lu
2021-11-03 12:05 ` Denis Kirjanov
2021-11-03 14:08 ` Wells Lu 呂芳騰
2021-11-03 12:10 ` Philipp Zabel
2021-11-03 15:11 ` Wells Lu 呂芳騰
2021-11-03 15:52 ` Randy Dunlap
2021-11-03 18:08 ` Wells Lu 呂芳騰
2021-11-03 19:30 ` Andrew Lunn
2021-11-04 5:31 ` Wells Lu 呂芳騰
2021-11-04 12:59 ` Andrew Lunn
2021-11-04 14:55 ` Randy Dunlap
2021-11-04 17:51 ` Wells Lu 呂芳騰
2021-11-04 17:46 ` Wells Lu 呂芳騰
2021-11-04 18:21 ` Andrew Lunn
2021-11-04 19:03 ` Wells Lu 呂芳騰
2021-11-03 20:26 ` Randy Dunlap
2021-11-03 16:51 ` Andrew Lunn
2021-11-05 11:25 ` Wells Lu 呂芳騰
2021-11-05 13:37 ` Andrew Lunn
2021-11-08 9:37 ` Wells Lu 呂芳騰
2021-11-08 13:15 ` Andrew Lunn
2021-11-08 14:26 ` Wells Lu 呂芳騰
2021-11-08 14:52 ` Andrew Lunn [this message]
2021-11-08 16:47 ` Wells Lu 呂芳騰
2021-11-08 17:32 ` Andrew Lunn
2021-11-09 14:39 ` Wells Lu 呂芳騰
2021-11-09 15:32 ` Andrew Lunn
2021-11-09 17:05 ` Wells Lu 呂芳騰
2021-11-14 19:19 ` Pavel Skripkin
2021-11-17 9:28 ` Wells Lu 呂芳騰
2021-11-03 11:27 ` [PATCH 0/2] This is a patch series of ethernet driver for Sunplus SP7021 SoC Denis Kirjanov
2021-11-11 9:04 ` [PATCH v2 0/2] This is a patch series for pinctrl " Wells Lu
2021-11-11 9:04 ` [PATCH v2 1/2] devicetree: bindings: net: Add bindings doc for Sunplus SP7021 Wells Lu
2021-11-11 14:57 ` Rob Herring
2021-11-12 2:57 ` Wells Lu 呂芳騰
2021-11-11 18:23 ` Andrew Lunn
2021-11-12 2:50 ` Wells Lu 呂芳騰
2021-11-11 9:04 ` [PATCH v2 2/2] net: ethernet: Add driver " Wells Lu
2021-11-11 11:31 ` Denis Kirjanov
2021-11-13 14:22 ` Wells Lu 呂芳騰
2021-11-13 15:34 ` Andrew Lunn
2021-11-18 8:15 ` Wells Lu 呂芳騰
2021-11-12 17:42 ` kernel test robot
2021-11-12 23:16 ` Florian Fainelli
2021-11-12 23:24 ` Andrew Lunn
2021-11-15 14:38 ` Wells Lu 呂芳騰
2021-11-14 18:59 ` Wells Lu 呂芳騰
2021-11-12 23:58 ` Andrew Lunn
2021-11-16 17:09 ` Wells Lu 呂芳騰
2021-11-16 22:15 ` Andrew Lunn
2021-11-18 8:22 ` Wells Lu 呂芳騰
2021-11-25 11:28 ` Wells Lu 呂芳騰
2021-11-25 15:20 ` Andrew Lunn
2021-11-26 3:56 ` Wells Lu 呂芳騰
2021-11-26 14:38 ` Andrew Lunn
2021-11-26 16:12 ` Wells Lu 呂芳騰
2021-11-26 18:07 ` Andrew Lunn
2021-11-26 19:13 ` Wells Lu 呂芳騰
2021-11-26 19:32 ` Andrew Lunn
2021-11-29 11:16 ` Wells Lu 呂芳騰
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